challenger Synonyms

contender unopposed oppugner oppugnant oppositionist opposer opponent nominee nemesis medalist litigant kindler impugner foe paynim player semifinalist quarreller scrapper dark horse duelling resistor cinderella tilter rival resister questioner pretender polemist entrant enemy competition combatant claimer citer candidate bidder battler athlete aspirant archenemy applicant antagonist competitor competitress confronter duelist doubter disputer deprecator